package com.start.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.start.reggie.entity.User;
import com.start.reggie.service.UserService;
import com.start.reggie.utils.R;
import com.start.reggie.utils.SMSUtils;
import com.start.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;

    /**
     * 发送短信验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)){
            //生成随机的4位验证码
            Integer code = ValidateCodeUtils.generateValidateCode(4);
            log.info("短信验证码为：{}",code);

            //调用阿里云提供的短信服务API完成发送短信
            //SMSUtils.sendMessage("短信名称","短信模板","手机号码","短信内容");

            //将生成的验证码保存到Session
            session.setAttribute(phone,code);

            return R.success("验证码发送成功");
        }

        return R.error("验证码发送失败");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){ //map用于接收前台返回的数据：phone（手机号）和code（验证码）
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //从Session中获取保存的验证码
        String codeInSession = session.getAttribute(phone).toString();

        //进行验证码的比对（页面提交的验证码和Session中保存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)){

            //如果能比对成功，则登陆成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);

            User user = userService.getOne(queryWrapper); //最多只有一条数据

            //判断当前手机号是否为新用户，若为新用户则自动完成注册
            if (user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }

            session.setAttribute("user",user.getId());
            return R.success(user);

        }

        return R.error("验证码有误，登陆失败");

    }

    /**
     * 移动端用户登出
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request){
        request.getSession().removeAttribute("user");

        return R.success("退出成功");
    }

}
